Qnergy PowerGen 5650 Series, Installation & Operation Manual

Page: 125 / 194

F
AULT
M
ESSAGES
, P
OWER
G
EN
113
Table 15-2 PowerGen Error Messages, Service Required
Fault Code Description Possible Causes
1001 No CAN response from QEC QEC has no terminating resistor on the
CANBUS line, CAN harness damaged
between the FPC and QEC, QEC CAN
address is not configured correctly,
hardware issue
1002 CAN response is invalid Noise on the CANBUS line, FPC/QEC CAN
hardware problem
1003 QEC does not enable QEC did not respond to an enable
command from the FPC due to hardware
issues
1005 HHT value is unavailable A timeout has occurred while waiting for
a valid head temperature reading from
the QEC
• If head temp has dropped below
200C. Check lockout signal from FPC
to BCU is bad or failed BCU (white
wire from Pin#4 on terminal J4 of
BCU). Trace wire from the BCU
through the isolating transformer to
the FPC
• Poor gas quality
• Gas valve calibration incorrect
• Engine problem
• No aux power