E.L.M. Le-blanc


Le-Blanc 4.20 Le-blanc 5.20

Problem Solution
Low fire only Check 32 vDC at solenoid. There may be cracked plastic inside solenod stopping second stage. If 32 vDC present, change solenoid
Noisy in Hot Water mode Run hot tap with boiler turned off at electrics, if still noisy then there is a piston in the water valve which can be noisy.
No hot water

1.Remove microswitches from under water section, should be continuity across terminals with no tap running

2.With tap running should be continuity across top two terminals

3.If switch tests ok may be diaphragm in water section