Qnergy PowerGen 5650 Series, Installation & Operation Manual

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F
AULT
M
ESSAGES
, P
OWER
G
EN
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Table 15-6 PowerGen Error Messages, Informative
Fault Code Description Possible Causes
5001 Pump voltage is too low Overloaded auxiliary power
line, incorrect QEC auxiliary
voltage settings, problem with
QEC hardware, bad pump,
warning 4006 in FW prior to
1.8.0.
5002 ‘HRU Top’ temperature is too
high
Temperature of HRU intake air
exceeded 131°F/55°C, ambient
temperature is above
maximum rated operating
range, bad sensor
5003 ‘HRU Top’ temperature is too
low
Temperature of HRU intake air
is below -13°F/-25°C or
-40°F/-40°C for LTS units.
Ambient temperature is below
rating, bad NTC sensor.
5004 GHT no heat demand Not enough heat demand.
Setpoint temperature was
reduced too drastically.
5005 Burner blower false RPM
reading
Blower RPM <10 or
RPM>10,000 during operation
for more than 2 seconds.
• Inspect harnesses to
blower.
• Verify QEC auxiliary
output settings.
• Blower or QEC hardware
issue.