What do I need to know about my Bosch water heater?
The primary fan spins slowly when the water heater is working. Check the wiring connection on the fan and control board. The voltage must be 120 VAC and the element correctly grounded. Does the venting system meet the code and manufacturer requirements?
What should the voltage be on a Bosch tankless water heater?
Check the wire connections on the gas valve and control board. Measure the voltage on the wires when a water heater is ON… it should be 24 VDC. If the measurement is as specified, the gas valve is malfunctioning. Find help to install or repair your Bosch tankless!
What does an error code on a Bosch water heater mean?
Get FREE Estimates! Error codes are the indicators of the problems inside the water heater. When the error code appears on the Bosch heater’s LCD display, the reset button sometimes leads to an error removal, but if it doesn’t work, the instructions below might help troubleshoot the problem:
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Why is the water temp on my Bosch tank so high?
Check the wire connections on the water valve and control panel. The temperature detected by the outlet temperature sensor is over 185 F. Ensure that the sensor is working correctly, and the wire connections are not loose. Another reason for the high temperature is the sediment build-up, so descaling is needed.
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Which is the most efficient Bosch water heater?
Gas tankless and electric water heaters from Bosch. Enjoy peace of mind and savings with highly-efficient and versatile water heaters from Bosch. Our vision is to provide comfort and peace of mind to our customers with compelling solutions created by passionate people. Do you have any questions or suggestions for improvement?
Check the wire connections on the gas valve and control board. Measure the voltage on the wires when a water heater is ON… it should be 24 VDC. If the measurement is as specified, the gas valve is malfunctioning. Find help to install or repair your Bosch tankless!
The primary fan spins slowly when the water heater is working. Check the wiring connection on the fan and control board. The voltage must be 120 VAC and the element correctly grounded. Does the venting system meet the code and manufacturer requirements?
Get FREE Estimates! Error codes are the indicators of the problems inside the water heater. When the error code appears on the Bosch heater’s LCD display, the reset button sometimes leads to an error removal, but if it doesn’t work, the instructions below might help troubleshoot the problem:
How to troubleshoot a Bosch tankless water heater?
Check the wire connections on the gas valve and control board. Measure the voltage on the wires when a water heater is ON… it should be 24 VDC. If the measurement is as specified, the gas valve is malfunctioning. And what do you think about Bosch? Click below to see contributions from other visitors to this page… Had a Bosch heater for 15 years.
Why does my Bosch water heater not make sparks?
The ionization electrodes are not making sparks when water is flowing. There are many reasons for this problem and here are some; low gas pressure, the fan speed is low, wire connections are loose, the air in the gas line, no gas. Ionization electrode failure during water heating.
Why is my Bosch water heater flashing an error code?
This is not an error code; it is a flashing status message that tells you to check; the wiring connection, gas pressure as it might be too low, voltage as it doesn’t meet the required 120 VAC, the unit that might not be properly grounded or the issue with the control board. The primary fan spins slowly when the water heater is working.
Check the wire connections on the gas valve and control board. Measure the voltage on the wires when a water heater is ON… it should be 24 VDC. If the measurement is as specified, the gas valve is malfunctioning. And what do you think about Bosch? Click below to see contributions from other visitors to this page… Had a Bosch heater for 15 years.
The ionization electrodes are not making sparks when water is flowing. There are many reasons for this problem and here are some; low gas pressure, the fan speed is low, wire connections are loose, the air in the gas line, no gas. Ionization electrode failure during water heating.
Where is the resistance on a Bosch tankless?
The element is located at the top-right corner of the unit. Measure the resistance on the wire harness; it must be between 115 and 120 ohms. Check the backflow temperature sensor connection; it might be damaged, or it got short-circuited.
The element is located at the top-right corner of the unit. Measure the resistance on the wire harness; it must be between 115 and 120 ohms. Check the backflow temperature sensor connection; it might be damaged, or it got short-circuited.
Is there a warranty on a Bosch tankless water heater?
The heating element is covered under warranty for a period of five years. All other parts are covered under a one-year warranty. If the tankless water heater develops a problem, troubleshoot it before calling for service.
What should water pressure be on Bosch tankless?
The voltage needs to be 120 VAC and adequately grounded. Ensure that a fan and control unit are not damaged. Make sure that the water pressure is less than 150 PSI and a flow rate below 10 GPM. Check the wire connections on the water valve and control panel.
What should resistance be for Bosch tankless heat exchanger?
It is important to check for any gas leakage close to the gas combustion chamber and heat exchanger. Check if the limiter is operating and wiring is correctly linked to the control board and limiter. The element is located at the top-right corner of the unit. Measure the resistance on the wire harness; it must be between 115 and 120 ohms.
How are temperature sensors installed on Bosch tankless water heaters?
Temperature sensors on Bosch tankless water heaters are factory installed to measure the incoming cold and outgoing hot water temperature, compare and ensure that the correct set temperature of hot water is met.
Where is the P4 code on a Bosch tankless water heater?
Upon closing the hot water tap, press and hold the program button (P) on the water heater and put the unit to ON position. The “188” code appears on display. Release the P button. Now the screen should read P2. Press the “+” sign on the control unit to get into the P4 diagnostic mode. Press the P button again, and the E sign should appear.