Table of Contents
17 Troubleshooting
17.1 Basic Problems
If there is a problem with the boiler, refer to the following table for possible
remedies. For minor problems, turning the boiler off and then turning back on may
resolve the situation. If turning the boiler off and on and attempting the remedies
Category
Problem
Boiler does not ignite.
Initial
operation
Unit attempts to ignite
but fails
Space heating side
malfunction
Hot water is not produced
when a faucet is opened.
No water is available
when a faucet is opened.
The hot water is not at
the correct temperature.
Temperature
Water takes a long time to
become hot after opening
the hot water faucet.
The water is too hot.
The water is not hot
enough.
Fluctuation in hot water
temperature.
Table 29
Singular Combi Boiler - BTC 439003301 B (2021/07)
Possible Cause(s)
Are the gas and water pipes connected properly?
Is there air in the gas line?
Is the gas supply pressure sufficient?
Is the setting temperature too low?
Is there power to the system, or is the system in
stand by?
Are the gas and water supply valves fully open?
Is the water supply cut off to the household?
Is gas being provided by the gas meter?
Is there enough gas (for LP) in the tank?
Is the water inlet filter clogged?
Is the power button turned on?
Is the water supply cut off?
Is the boiler frozen?
Are the pipes frozen?
Is the hot water faucet sufficiently open?
Have you allowed enough time for the cold water in
the pipes to drain out?
Are the gas and cold water supply valves fully open?
Is the water temperature setting appropriate?
Are the gas and cold water supply valves fully open?
Is the water temperature setting correct?"
Is the water inlet filter clogged?
suggested below do not resolve the problem, contact an authorized technician,
licensed professional, or technical support at 1-866-642-3198.
What to Do
1. Check for correct plumbing or crossed piping to the unit.
1. Turn off the boiler and then turn it back on.
2. Have your installing contractor check the gas supply
pressure.
3. Ensure the boiler is powered by 120 V-1 PH-60 Hz.
1. Check the boiler's temperature setting. See "Operating the
Boiler" on page 42.
1. Make sure the power is on, and plugged into the outlet with
the correct voltage. Press the Power button and raise the
setting temperature. Make sure the boiler is turned on.
1. Fully open the gas and water supply valves.
2. Check the water inlet fi lter for debris.
3. Check the power status of the boiler.
1. Open the cold water supply.
2. Check if the boiler and/or the pipes are frozen.
1. Fully open the hot water faucet.
1. Even though the unit may be operating properly, the cold
water contained in the piping will need to fl ow through the
faucet before the hot water can reach the faucet. Wait for
several minutes.
1. If the cold water supply temperature is too high, it is
possible for the temperature to be higher than the
temperature set on the front panel. Decrease the water
temperature on the front panel.
2. If only a small amount of hot water is required, it is possible
for the temperature to be higher than the temperature set
on the front panel. Decrease the water temperature on the
front panel.
3. If the cold water supply passes through a solar preheating
system, it passes for the delivered water temperature to be
higher than the temperature set on the front panel.
1. Fully open the gas and cold water supply valves.
2. Check the water temperature setting.
1. Clean the water inlet fi lter for debris.
Installation Instructions
| 65
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