GE Dishwasher IH Error Code: Meaning, Causes & Fix
Display fragment, not a standalone GE dishwasher code — 'IH' is most plausibly a partial/mis-read rendering (GE dishwasher displays use words like H2O; a 1H/IH reading is usually a timer/delay display or segment artefact).
GE dishwashers communicate faults in plain words (H2O, FTD, 'Clean'/'Sanitized' states) rather than letter codes like IH. An 'IH' reading is typically the delay-hours display (1H = 1-hour delay start, a normal feature state) misread as a fault — the dishwasher is simply waiting out a programmed delay. If the machine otherwise misbehaves, the real information is the symptom, and GE's word-based fault list (fill: H2O family; drain: FTD family) is where the diagnosis lives. GE's own Delay Start article fills in the display mechanics the base entry summarises, and they explain every version of the 'IH' encounter. On touch-control models, GE says, the display or LED indicator shows the delay as a number plus the letter H — 1H, 2H, 3H and so on — and you touch the Delay Start pad once for each hour of delay desired, with the range running from 1 to 14 hours depending on the model. Once set, the control automatically counts down and displays the remaining hours left before the wash cycle starts, and at the end of the countdown the dishwasher starts the programmed wash cycle by itself. Two GE-documented behaviours catch owners out. First, unlatching or opening the door does not cancel the Delay Start option — you can open the machine, add a forgotten plate, close it again, and the countdown simply continues, which is why 'I opened it and it still says IH' proves nothing except that the feature is working as designed. Second, the feature has a second name on newer models: GE's cancel article notes that its newer dishwashers call the same feature Delay Hours, so a manual that never mentions 'Delay Start' may document your exact display under that heading instead. On mechanical-control models there is no display at all — you turn the dial pointer to the number of hours (1 to 6) desired, and the timer advances and starts the cycle automatically — so an 'IH' report always belongs to a touch-control machine. GE also documents why the feature exists, which is the strongest evidence it is a feature: the Delay Start option, GE says, lets you run the dishwasher when its hot-water demands will not conflict with the family's, and lets you take advantage of off-peak utility rates. Nobody builds a tariff-saving option into a fault code. Finally, a detail from GE's Control Lock article that explains a confusing sub-case: the control lockout exists to stop a cycle being started or interrupted by accident, but GE states that the only dishwasher cycle not affected by the child lockout feature is the Delay Start option — so a locked panel can still acquire a delay, and an owner can meet 'IH' on a machine they believe is locked against exactly this kind of surprise.
What causes the IH code on a GE dishwasher?
Delay Start active (1H)
A normal feature: the cycle starts after the set delay.
Segment display mis-read
Partial characters read as 'IH'.
A delay set hours ago by someone else, counting down exactly as designed
GE's countdown runs up to 14 hours on some models, and the display shows the remaining hours — so a delay set after dinner can still be presenting as 1H (read as IH) at breakfast, with the machine moments from starting itself. Ask the household before diagnosing: a delay nobody remembers setting is usually a delay somebody set on autopilot while choosing the cycle.
The Delay pad brushed while loading or wiping the panel
Delay Start is armed from the same touch surface as every other option, one touch per hour, and GE's lockout article confirms the lock does not guard it. A sleeve across the pads, a cloth wiped over the controls, or a child exploring the lights can each bank a 1-hour delay that nobody chose — the single most common biography of an unexplained 'IH'.
Checks to run before you replace anything
- Check the Delay Start setting; cancel it and start a cycle — a healthy machine responds immediately.
- Photograph the display to re-read the characters in context.
- Watch the display for a minute, then again later: GE's countdown displays the remaining hours, so a delay display is a countdown in progress — a reading that will fall (or a machine that will start itself at zero) is a timer, and a timer is not a fault. Note the cycle time the panel shows alongside it; a selected, programmed cycle waiting its turn is the feature's whole posture.
- Photograph the display and settle the first character from the photograph: GE's format is a number plus H, so the true reading is 1H — a digit one followed by H — and the photograph usually makes the one's plain vertical stroke obvious against the letter I your memory supplied. If the first character has serifs, cross-strokes or a curve, photograph it again in better light before concluding anything.
- Test the door rule: open the dishwasher and close it again. GE states that unlatching or opening the door does not cancel Delay Start, so a display that survives a door opening unchanged has behaved exactly as the feature should — while a display that vanishes or a cycle that starts on closing belongs to a different story (an interrupted cycle re-starting), not to IH at all.
How to fix the IH error code
- Cancel the delay if unwanted; otherwise no fix exists because no fault does.
- Cancel the delay using GE's published steps for the feature, from its Canceling the Delay Start Option article: press the Delay Start pad until the hours of delay indicator goes off. On models where the pad is labelled Delay Hours, note GE's wrinkle: the Delay Hours pad does not have an Off selection, so you scroll through the delay hours by pressing and releasing the pad repeatedly until no delay hours number shows in the display. On most models, either way, you can instead press and hold the Start or Start/Reset pad for 3 seconds, which cancels any set cycle including the Delay Start or Delay Hours setting — after which you select the cycle afresh and start it immediately. That is the complete fix for 'IH': there is no part, no reset procedure beyond the cancel itself, and no reason to cut power to the machine, because nothing was ever wrong with it.
The part that usually fails: None
IH identifies no part. Real GE dishwasher faults announce themselves in words (H2O, FTD).
How to reset / clear the IH code
Not applicable to a status display.
GE dishwashers reset most faults with a power cycle: trip the breaker (or unplug) for about 5 minutes, restore power, and start a cycle. Codes tied to water detection or drain faults return if the condition is still present — the control re-checks fill and drain at the start of every cycle.
Why does the IH code keep coming back?
If the display repeatedly shows garbled characters, the display board may be losing segments — note it for a technician. An 'IH' that keeps coming back is a delay that keeps being set, and the suspects are behavioural before they are electrical: a household member who runs the machine on delay by habit (GE built the feature for off-peak rates and hot-water conflicts, so a deliberate nightly delay is legitimate use, not a fault), a pad brushed during loading or panel-wiping — remembering that GE's control lock does not block Delay Start, so even a locked panel can acquire one — or, last and rarest, a pad that registers touches nobody made, which announces itself by delays appearing at random hours with the kitchen empty. Log two or three occurrences with times before suspecting the panel; the pattern acquits or indicts the household first, as it should.
How to stop IH coming back
- Delay Start active (1H): A normal feature: the cycle starts after the set delay.
- Segment display mis-read: Partial characters read as 'IH'.
- A delay set hours ago by someone else, counting down exactly as designed: GE's countdown runs up to 14 hours on some models, and the display shows the remaining hours — so a delay set after dinner can still be presenting as 1H (read as IH) at breakfast, with the machine moments from starting itself. Ask the household before diagnosing: a delay nobody remembers setting is usually a delay somebody set on autopilot while choosing the cycle.
Retrieving stored fault codes on GE dishwashers
GE dishwashers have a service mode (on most electronic models: press and hold specific pad pairs — commonly the Cooktop/Heated Dry style combinations printed in the service manual for the model) that displays stored error codes (the F-code family such as FTD, FED) and lets a technician run each load separately. Consumer-facing displays only show a few of these codes, which is why some GE codes only appear inside service mode.
Other GE dishwasher error codes
| Code | Meaning | First fix |
|---|---|---|
| 1H | Delay Start mode; the number plus H shows the delay hours selected (1H = 1 hour) | Wait for the countdown to finish, or cancel Delay Start and press Start to run the cycle now |
| 2H | Delay Start mode; the number plus H shows the delay hours selected (2H = 2 hours) | Wait for the countdown to finish, or cancel Delay Start and press Start to run the cycle now |
| 999 | Possible leak on models with Floor Protect with Alert; on other models the control needs a reset | Check under the dishwasher for water; if none is found, reset power at the breaker and rerun |
| ACF | High supply voltage fault (shown as AcF on the seven-segment display) | Disconnect power and have the household supply voltage checked by an electrician |
| C1 | Pump-out during drain exceeded 2 minutes | Clean the air gap, reposition the drain hose, and run the disposer to clear it |
| C2 | Total pump-out cycle exceeded 7 minutes | Press RESET to stop the beep, then check the drain hose, air gap and sump for blockages |
| C3 | Dishwasher will not drain | Disconnect power at the breaker for about 30 seconds to reset, then check the drain hose and sump for obstructions |
| C4 | Machine filled twice after a power failure | Tap the float cover in the front left corner of the tub floor to unstick it and clear debris from the sump |
| C5 | Pump-out time too short | Confirm the water supply is on and tap the float cover to free a stuck float |
| C6 | Water temperature too low | Run the hot water faucet nearest the dishwasher before starting, and make sure the water heater delivers at least 120°F |
| C7 | Water temperature sensor circuit inoperative | Turn power off at the breaker for 30 seconds and reset; if it returns, the sensor circuit needs service |
| C8 | Detergent cup blocked from opening fully | Remove the obstruction, relatch the door and wait about 30 seconds |
| CFE | Continuous Fill Fault; the control detects filling that will not stop | Turn off the water supply and disconnect power; if water still enters with power off, the inlet valve has failed |
| CUP OPEN | Detergent cup not closed | Add detergent and latch the cup closed, or press Start again to override |
See the full list on the GE Dishwasher error codes hub.
Codes IH gets confused with
E1 — Not a GE dishwasher fault code. GE's published dishwasher fault list contains no E1: GE's consumer displays are a number plus H for Delay Start, the C-code family (C1-C8), PF, Cup Open, H2O, FTD and PrS word displays, and LEAK DETECTED or 999 on leak-detection models, while GE's service sheet uses numeric F-codes read in Fault Code Display Mode. An earlier version of this entry tied E1 to the fill/drain system from 'period documentation'; that claim could not be traced to any GE document and is withdrawn. Diagnose the machine by its symptom, using the real GE code that symptom belongs to. Start with the fault language GE actually publishes, because it is complete enough to leave no room for E1.
FED — Not a code GE publishes. 'FED' appears in neither GE's consumer dishwasher fault list — which reports faults as words and short codes such as FTD (Failure To Drain), H2O (low water) and PrS — nor in the fault table of GE's dishwasher service sheet, where stored faults are numeric F-codes (F86, F98 and their family) read in Fault Code Display Mode. The expansions sold online for it ('Fill Error Detected', 'Flood Error Detection') appear in no GE source. FED is a display reading in search of a code, and GE's two published lists are the evidence.
H2O — H2O error — the dishwasher is not detecting water fill (fill fault). On GE dishwashers H2O (H20) means the control opened the inlet valve and did not see the machine fill — supply problem, valve problem, or the flood/float switch stuck in the 'full' position telling the control not to fill at all.
FTD — Failure To Drain — the dishwasher did not drain (GE's plain-language drain code). FTD says exactly what it means: the dishwasher tried to drain and couldn't.
Working from a symptom instead? Read our troubleshooting guide for this problem.
Frequently asked questions
Does IH mean my GE dishwasher is broken?
No — it's almost certainly the 1-hour delay display (1H). Cancel Delay Start and the machine runs normally.
How do I cancel the 1H (IH) delay on my GE dishwasher?
With GE's published steps: press the Delay Start pad until the hours of delay indicator goes off — on Delay Hours models, keep pressing and releasing the pad until no delay hours number shows, because that pad has no Off selection. Or, on most models, press and hold the Start or Start/Reset pad for 3 seconds, which cancels any set cycle including the delay. Then select your cycle and start it normally.
Does opening the door cancel the IH delay on a GE dishwasher?
No. GE's Delay Start article states it in terms: unlatching or opening the door does not cancel the Delay Start option, on touch-control and mechanical models alike. The countdown continues when you close the door — which is handy for adding a forgotten item mid-delay, and confusing if you expected the opening to clear the setting. Only the pad steps in GE's cancel article clear it.
What is the difference between IH and 1H on a GE dishwasher display?
Nothing — they are the same display read two ways. GE's documented format is a number plus the letter H: 1H for a one-hour delay, 2H for two hours, and so on up to the model's maximum (GE's article gives 1 to 14 hours, varying by model). There is no IH code in GE's dishwasher documentation; the letter I is the digit 1 as rendered on the display and transcribed by eye.
Can I set a delay longer than 1 hour on my GE dishwasher when it shows IH?
Yes — the display you are reading is the setting itself. GE's article: touch the Delay Start pad once for each hour of delay desired, and the display shows the total (2H, 3H and so on); the control then counts down the remaining hours and starts the programmed cycle at zero. Newer models label the same pad Delay Hours. Set it deliberately and 'IH' stops being a mystery and becomes the most useful overnight feature on the machine.
Related guides
Facts on this page were checked against manufacturer documentation: products.geappliances.com · www.manua.ls · forum.appliancepartspros.com · www.appliancehelper.net