2). Replace Inverter board
Water inlet temp sensor failure
The water inlet temperature
sensor is either damaged or
running a short circuit
Check the Temperature sensor at the water inlet, might
need to be changed
Water outlet temp sensor failure
The water outlet temperature
sensor is either damaged or
running a short circuit
Check the Temperature sensor at the water outlet,
might need to be changed
Gas exhaust temp sensor failure
The sensor is running a short
circuit, damaged, or not fixed
properly
Check the gas exhaust Temperature sensor, might need
a replacement
Evaporator coil pipe temp sensor
failure
The sensor is running a short
circuit, damaged, or not fixed
properly
Check the evaporative coil pipe Temperature sensor,
might need a replacement
Gas return temp sensor failure
The sensor is running a short
circuit, damaged, or not fixed
properly
Check the Gas return Temperature sensor, might need a
replacement
Cooling coil pipe temp sensor
failure
The sensor is running a short
circuit, damaged, or not fixed
properly
Check the cooling coil pipe Temperature sensor, might
need a replacement
Ambient temp sensor failure
The sensor is running a short
circuit, damaged, or not fixed
properly
Check the Ambient Temperature sensor, might need a
replacement
Cooling plate temp sensor failure
The sensor is running a short
circuit, damaged, or not fixed
properly
The sensor is running a short
circuit, damaged
1). Replace inverter board for single phase model
2). Replace power filter plate for 3 phases model