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Honeywell TH401 - Troubleshooting; Common Issues and Solutions

Honeywell TH401
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TH401
8
Table 2. In Case of Difficulty
Problem Solutions
Thermostat is hot. This is normal.
Displayed tem-
perature is wrong.
Remediate if any the following conditions exists:
The thermostat is exposed to air draft.
The sticker on the thermostat’s screen has not been removed.
The thermostat is located near or above a heat source such as
a light dimmer.
Display disappears
and reappears
after a few minutes.
The thermal protection device on the heater has temporarily
opened. This can happen if the heater is obstructed by furniture
or curtain and has overheated, or if the heater’s thermal protec-
tion device is too sensitive.
69-2551EFS-03 (TH401 Cadet) 5 x 3.5.book Page 8 Thursday, August 27, 2020 11:40 AM

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