On GE dishwashers, H2O means the dishwasher isn't getting enough water — usually a half-closed valve under the sink or a kinked line. C1 and C2 are drain errors (drain took too long), so clean the filter and check the drain hose and disposal connection. C3 and C4 relate to water in the base or the float switch, but their exact meaning differs by model. On models without a display, the number of blinks equals the code number.
Want it fixed instead? Same-day or next-day visits across the Las Vegas Valley — the $75 diagnostic is credited toward the repair.
| Code | What it means | What you can do |
|---|---|---|
| H2O | Not enough water coming in | Open the supply valve fully, check the hose for kinks. |
| C1 | Drain took too long (about 2 minutes) | Clean the filter; check the drain hose and air gap. |
| C2 | Drain took far too long (about 7 minutes) | Same checks as C1; if the pump hums, it needs service. |
| C3 / C4 | Meaning varies by model or production year — sources disagree (water in base pan or float switch) | Model-specific: a technician visit is needed to find the exact cause. |
| Code | What it means | What you can do |
|---|---|---|
| 1 blink | Same as C1 | Clean the filter and drain path. |
| 3 / 4 blinks | Same as C3 / C4 — varies by model | Model-specific: a technician visit is needed to find the exact cause. |
Codes and their meaning can vary by model and production year, and the same code can have different causes. Where sources disagree we say so; in every case the exact cause is confirmed only by a technician's on-site diagnosis. Your owner's manual has the definitive list for your model.
Code came back after these checks? That means a part has failed — let a technician confirm it before parts are guessed.
Unplug the appliance (or switch off its breaker) before touching anything inside it, and never open a sealed refrigeration system, a gas valve or a microwave. If a code points to a part, the part has to be tested before it is replaced; we do that on the $75 diagnostic visit, credited toward the repair.
It isn't getting enough water — check the supply valve and hose first.
Count the blinks; on many GE models the count equals the C-code number.
Yes, including panel-ready Monogram dishwashers.
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Licensed, insured, EPA 608 certified technicians, same-day or next-day across the whole Las Vegas Valley. The in-home diagnostic is $75 and is credited toward the repair.
A 38-year-old Sub-Zero 500 Series freezer most companies would have written off: we replaced the compressor, evaporator, heat exchanger and drier with OEM parts and retrofitted it from R12 to a modern refrigerant.
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