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Glow Brand · Boiler troubleshooting

Replacing the fan

Glow Combi C95 & C140

What is going on

Fan removal with burner assembly removed from the heat exchanger.

Check in this order

  1. Remove the heat demand, let post-purge finish, turn gas off and remove power.
  2. Swing the control panel out and disconnect the fan, gas valve, ignition and ionization electrode cabling.
  3. Disconnect the gas supply pipe at the gas valve inlet union. Do not lose the fiber washer.
  4. Once the chamber has cooled, remove the four nuts holding the burner assembly. Remove the assembly without damaging the refractory disc. Lay it face down on a firm surface.
  5. Remove the four 8 mm bolts holding the fan to the heat exchanger manifold. Do not damage the manifold-to-fan gasket.
  6. Remove the three T30 Torx screws securing the venturi to the fan. Do not damage the venturi-to-fan O-ring.
  7. Replace the fan and reassemble in reverse order.
  8. Check for gas leaks.

Applies to: C95 & C140 Glow Combi boilers

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Source: C-300 C95-C140 Installation & Operation Manual, p. 80. Written in our own words; check the manual for your exact model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.