Specifications

24
E08
Communication
failure
1.faulty connection between
main PCB and controller
remove cable, check plugs &
sockets and cable for damage
2. controller hardware failure check device and wiring
connections -replace if req’d
3. main PCB hardware failure check device and wiring
connections -replace if req’d
P14
Anti freeze temp
1. The sensor is open or short
circuit
check sensor and wiring
connections -replace if req’d
P13
Pipe temp 1
1. The sensor is open or short
circuit
check sensor and wiring
connections -replace if req’d
P05
Ambient temp
1. The sensor is open or short
circuit
check sensor and wiring
connections -replace if req’d
P01
Water in
1. The sensor is open or short
circuit
check sensor and wiring
connections -replace if req’d
P02
Water out
1. The sensor is open or short
circuit
check sensor and wiring
connections -replace if req’d
E11
Low pressure
1. incorrect or loose wiring check wiring against
schematic and connection
2. low or no refrigerant charge Check refrigerant gauge on
unit. A zero or close to zero
reading indicates a loss of
refrigerant. Contact Evoheat
3. Low Pressure switch failure check device or replace
P07
Frostbite protect
1. Inlet water temp is too low If water is close to freezing unit
will not run to prevent damage.
Wait until water is warmer
2. Inlet water temp sensor is
faulty
check sensor and wiring
connections -replace if req’d
PP03
Coil 1 sensor
1. The sensor is open or short
circuit
check sensor and wiring
connections -replace if req’d
PP04
Coil 2 sensor
1. The sensor is open or short
circuit
check sensor and wiring
connections -replace if req’d