NO. DISPLAY
1 E3
2 E5
Power supply excesses operation range
3 E6
Excessive temp difference between inlet and outlet
4 Eb
Ambient temperature too high or too low protection
5 Ed Anti-
NO. DISPLAY
1 E1
2 E2
3 E4
3 phase sequence protection
4 E7
Water outlet temp too high or too low protection
5 E8
High exhaust temp protection
6 EA
Evaporator overheat protection (only at cooling mode)
7 P0
Controller communication failure
8 P1
Water inlet temp sensor failure
9 P2
Water outlet temp sensor failure
10 P3
Gas exhaust temp sensor failure
11 P4
Evaporator coil pipe temp sensor failure
12 P5
Gas return temp sensor failure
13 P6
Cooling coil pipe temp sensor failure
14 P7
Ambient temp sensor failure
15 P8 Cooling
16 P9
17 PA
18 F1
Compressor drive module failure
19 F2
20 F3
21 F4
Compressor running failure
22 F5
Inverter board over current
23 F6
Inverter board overheat protection
24 F7
25 F8
Cooling plate overheat protection
26 F9
27 Fb
28 FA
PFC module over current protection
15
4. FAILURE CODE
NOT FAILURE DESCRIPTION
Power supply excesses operation range
Excessive temp difference between inlet and outlet
water(Insufficient water flow
Ambient temperature too high or too low protection
FAILURE DESCRIPTION
3 phase sequence protection
(three phase only)
Water outlet temp too high or too low protection
High exhaust temp protection
Evaporator overheat protection (only at cooling mode)
Controller communication failure
Water inlet temp sensor failure
Water outlet temp sensor failure
Gas exhaust temp sensor failure
Evaporator coil pipe temp sensor failure
Gas return temp sensor failure
Cooling coil pipe temp sensor failure
Ambient temp sensor failure
Compressor drive module failure
Compressor running failure
Inverter board over current
protection
Inverter board overheat protection
Cooling plate overheat protection
-power protection
PFC module over current protection
water(Insufficient water flow