LAARS NeoTherm NTV (Sizes 150–285 MBTU/h) - Service Manual - Manual (Page 15)

5 Service Manual NeoTherm 80 - NeoTherm 285
Control Unit is in “Standby” Mode
In certain situations, the controller on this unit can go into “Standby”
mode. The Boiler pump is running, so the unit sees a “Call for heat.”
There is no lockout or hold, but something is preventing it from going to
“Run” mode.
A4
No
Check for:
- Call for heat?
- System is up to set-point temp. - no need
for more heat?
- If warm weather shutdown is enabled:
Outdoor air temperature too warm?
Normal
operating
condition?
No
Unit operates
normally?
Disconnect outdoor temp. sensor
Yes See Section B29
“Troubleshooting Outdoor Reset”
No
Unit operates
normally?
Set Anti-Short-Cycle to minimum value
Yes Correct settings for Anti-Short-Cycle
(continued)
Yes