Bosch Singular 5200 User Manual

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User Manual
Singular Combi Boiler - BTC 439003302 A (2021/03)
5 Troubleshooting
5.1 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 Possible Cause(s) What to Do
Initial
operation
Boiler does not ignite.  Are the gas and water pipes connected properly? 1. Check for correct plumbing or crossed piping to the unit.
Unit attempts to ignite
but fails
 Is there air in the gas line?
 Is the gas supply pressure sufficient?
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.
Temperature
Space heating side
malfunction
 Is the setting temperature too low?
1. Check the boiler’s temperature setting. See "Operating the
Boiler" on page 7.
 Is there power to the system, or is the system in
stand by?
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.
Hot water is not produced
when a faucet is opened.
 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?
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.
No water is available
when a faucet is opened.
 Is the water supply cut off?
 Is the boiler frozen?
 Are the pipes frozen?
1. Open the cold water supply.
2. Check if the boiler and/or the pipes are frozen.
The hot water is not at
the correct temperature.
 Is the hot water faucet sufficiently open? 1. Fully open the hot water faucet.
Water takes a long time to
become hot after opening
the hot water faucet.
 Have you allowed enough time for the cold water in
the pipes to drain out?
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.
The water is too hot.
 Are the gas and cold water supply valves fully open?
 Is the water temperature setting appropriate?
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.
The water is not hot
enough.
 Are the gas and cold water supply valves fully open?
 Is the water temperature setting correct?"
1. Fully open the gas and cold water supply valves.
2. Check the water temperature setting.
Fluctuation in hot water
temperature.
 Is the water inlet filter clogged? 1. Clean the water inlet fi lter for debris.
Table 8
suggested below do not resolve the problem, contact an authorized technician,
licensed professional, or technical support at 1-866-642-3198.

Bosch Singular 5200 Specifications

General

Brand	Bosch
Model	Singular 5200
Category	Boiler
Language	English