Troubleshooting - Bosch TRONIC 5000T ES30M Installation Manual

12 Troubleshooting

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