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21
Installation Manual
Bosch Tronic 5000T Electric Water Heaters- BTC 724001301 A (10.2021)
12 Troubleshooting
Review the chart on this page fi rst and you may not need to call for service.
Problem
Possible Causes
What To Do
Rumbling noise
Water conditions in your home caused a build up of scale or
mineral deposits on the heating elements.
Remove and clean the heating elements.
Relief valve producing popping
noise or draining
Pressure build up caused by thermal expansion to a closed
system.
This is an unacceptable condition and must be corrected. Turn
off power to the water heater until the situation is remedied.
Contact the water supplier or plumbing contractor on how to
correct this. Do not plug the relief valve outlet.
Rattling noise during periods of
water usage
Internal heat trap fi ttings in operation.
This is normal for heat trap fi ttings when in operation and does
not indicate a need for service.
Not enough or no hot water
Water usage may have exceeded the capacity of the water
heater.
Wait for the water heater to recover after a large hot water
demand.
A fuse is blown or a circuit breaker tripped.
Replace fuse or reset circuit breaker.
Electric supply may be off .
Make sure electric supply to water heater and disconnect switch,
if used, are in the ON position.
The thermostat may be set too low.
See the Temperature regulation of the water heater section of
this manual.
Leaking or open hot water faucets.
Make sure all faucets are closed.
Electric service to your home may be interrupted.
Contact the local electric utility.
Improper wiring.
See the Installing the water heater section of this manual. We
recommend that all wiring and electrical work be carried out by a
licensed contractor.
Manual reset limit (ECO).
See the Temperature regulation of the water heater section of
this manual.
Cold water inlet temperature may be colder during the winter
months.
This is normal. The colder inlet water takes longer to heat.
Bad or failed element.
Contact a qualifi ed service technician.
Water is too hot
The thermostat is set too high.
See the Temperature regulation of the water heater section of
this manual.
Table 6
If further assistance is needed, our technical support team is available
Monday to Friday via:
Email:
www.boschheatingcooling.com/contact
Phone: 1-866-642-3198
