I have an H400 with digital temp control panel the down temp works but the up temp is usually non responsive. Is this a board problem and if it is is it something I can replace myself without too many hassles.thanks quentin
It is likely the keypad that has gone bad. Not difficult to replace. But you want to be sure thats what it is, as it is an electronic part, that is usually not returnable. The part number would depend on the model of the heater. Likely it is a h400idxl2 heater.
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