Haier GE PTW600BPR DG Series Technical Service Manual page 68

Name Description
58 ADC Health This fault is set when
Check Fault any ADC Self-Diagnosis
channel reports an out-
of-tolerance value for
10-seconds.
65 Pressure The pressure sensor loss
Sensor algorithm set conditions
Continuous are described here: Flood
Gallons Monitor Protection Algorithm
76 Bulk sensor not Bulk sensor reads:
connected or
out of range
78 Board The main board detects
Communication that it doesn't have the
API Mismatch same API version as
another board.
79 Voice Module No communication
Heartbeat between the Voice
Failure Module and MC detected
for 10 seconds.
86 Extremely Low Current Water Level
Water Pressure Cycle Step Low Pressure
Check is ran < 0.85 *
Minimum Fill Level.
92 Inverter No heartbeat from
Heartbeat the inverter to the MC
Failure detected for 60-seconds
86 Extremely Low Current Water Level
Water Pressure Cycle Step Low Pressure
Check is ran < 0.85 *
Minimum Fill Level.
91 User Interface No communication
(UI): Main between the User
Board Interface (UI) and Main
Heartbeat Control Board (MCB)
Timeout detected for 10-seconds.
• Not connected (> =
4.84V)
• Empty (< 2.00V)
Repair Action
• Replace main board.
• See Fault Code 25.
• Check bulk tank level sensor harness
connections.
• If the above repair actions don't clear the fault,
replace bulk tank sensor.
• Use SmartHQ diagnostic tool or use a SUM
module to update the software.
• Check voice module harness connections.
• If the above actions don't clear the fault,
replace voice board and harness.
• If the above actions don't clear the fault,
replace user interface (UI) board.
• See Fault Code 25.
• Run Spin Test 14. If cycle completes, no
repair needed and clear faults.
• Check line voltage for 102 VAC to 132 VAC.
• Check all inverter board harness connections.
• Check Motor TCO continuity at J502 (inverter
board). If open, should reset after 45-minutes.
• Check for continuity through each pair of
motor phase windings at J401 (inverter). If
any discontinuities, replace motor.
• See Fault Code 25.
• Check User Interface (UI) harness
connections.
• Check Main Control Board (MCB) to User
Interface (UI) voltages.
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