Heatmor 100 CB - 23 Season Start up & Shut down Checklists; 24 Frequently Asked Questions

CHAPTER 24
FREQUENTLY ASKED QUESTIONS
1. Q. How much water should be in the bladder?
A. When the furnace is initially lled, there should be about one inch of water in the
bladder with the water at a temperature of 50 degrees Fahrenheit. When the furnace
is at its operating temperature, the bladder should be near full but not hard. Overlling
the bladder can shorten the life of the bladder.
Refer to:
• Maintaining the correct amount of water in the bladder and in the HEATMOR™.
2. Q. Why is water coming out of the overflow relief vent pipe?
A. When the furnace is initially lled and too much water is in the furnace, it releases
through the relief vent pipe when the furnace is up to temperature. If this happens, a
small amount of water should be removed from the furnace so the bladder is not hard.
Refer to:
• Installation of the HEATMOR™ Furnace.
3. Q. Why is my furnace wet on the inside of the firebox?
A. When your furnace is rst red up, and also at times during normal operation, the
atmosphere inside the rebox will exceed the dew point causing condensation.
Refer to:
• Furnace has excessive moisture in rebox (Located in Trouble Shooting and
Solutions).
• Dew Point (Located in Safe Operating Guidelines).
4. Q. Why does my furnace fail to respond to the switch at the front of the furnace?
For example; the light will not come on and the fan will not operate?
A. The high limit aquastat has probably overridden the operating aquastat. If this has
happened, it should also trigger your distribution system or high water temperature
warning.
Refer to:
• High Water Temperature Safety Shutoff Controller (Located in Electrical).
5. Q. Why is it getting so warm in my house and I cannot reduce the temperature
with the thermostat?
A. At this point the high limit aquastat has been tripped on. To detect the precise
reason, please contact your local dealer.
Refer to:
• High Water Temperature Safety Shutoff Controller (Located in Electrical).
6. Q. My furnace is shut down but still continues to increase in water temperature?
A. There is an air leak somewhere in the furnace. Check all ippers and seals,
ensuring that there is an airtight seal.
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