York Heat Pump: YEE
Re: Lockout Codes / Fault Codes
The control shall provide fault codes using the Status LED. The table below describes the LED displays during fault codes.
The "lockout" can be Reset by: 1) cycling power to the air handler or 2) turning the thermostat system switch "Off" and then back to "On".
LOCKOUT CODES:
Flashes | Description |
2 | Hi pressure fault (not in lockout yet) |
3 | Hi pressure lockout (last mode was compressor) |
4 | Hi pressure lockout (last mode defrost) |
5 | Low pressure lockout (last mode compressor) |
6 | Low voltage (< 19.2 volts) |
7 | Low voltage (< 16 volts) |
8 | Coil sensor failure (open or shorted) |
9 | Ambient sensor failure (open or shorted) |
10 | Control failure |