B18 - checking the blower, Checking the blower, See section b18 – LAARS NeoTherm NTV (Sizes 150–285 MBTU/h) - Service Manual User Manual
Page 46: If power is available at j2, but the blower is, Not running, go to section b18 - “checking the, Blower
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36
Service Manual NeoTherm 80 - NeoTherm 285
Checking the Blower
B18
Yes
Blower goes
to full speed?
Replace the SOLA controller
Unplug J2. This is the
control signal to the blower.
No
Yes
Check wiring
harness. Wires
OK?
No
Replace wire harness
No
Has call for heat?
At start of test, unit should be ready to run (”Standby”)
Blower runs
Problem with temp. sensor(s)
Short contacts
for call for heat:
CH: TB7 5-6
DHW: TB6 5-6
Blower does not run
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