Possible Cause 1: Leaking hoses or hose clamps.
1. Check the connection between the heating coil and the heater hoses.
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2. Check the hoses for damage.
3. Ensure the hose clamps are tightened to the torque values shown on the dimension diagram.
Possible Cause 2: Leaking heating coil.
1. Check the heating coil for any visible cracks or holes in the pipes.
2. Ensure the hose clamps are tightened to the correct torque.
Possible Cause 3: Leaking water valve.
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1. Check the water valve for any damage.
2. Ensure the hose clamps are tightened to the correct torque.
3. If the water valve is fine during these two initial tests, refer to Troubleshooting and Repair, SENR5664, "Troubleshooting and Repair of Heating and Air Conditioning Control Systems".
