Waterfurnace - Fault Codes

Geothermal Heat Pump: Waterfurnace

Re: Diagnostic Codes

These units can have either an Aurora Base Control (ABC) or an Aurora Expansion Board (AXB).


DIAGNOSTIC CODES:
Flashing Description
1 No faults in memory
2 High pressure fault
3 Low pressure fault
4 Water coil freeze-protect (heating)
5 Air coil freeze protect (cooling)
7 Condensate overflow fault
8 Over/Under voltage fault (<18 or >31.5 VAC)
11 FP1 & FP2 Swapped

FAULT DESCRIPTION:




Article ID: 283
Last updated: 19 Apr, 2017
Revision: 3
Equipment -> GeoThermal -> WaterFurnace -> NSH -> Waterfurnace - Fault Codes
https://ghac.makekb.com/entry/283/