Hoval Boiler Repairs

When a Hoval boiler goes down, the whole building usually feels it. Boiler Burner Services diagnose and repair Hoval UltraGas and other Hoval boilers for commercial sites across the South East, with priority response for breakdowns.

Common Hoval Faults We Fix

  • Ignition failure: worn or incorrectly gapped electrodes, ignition unit faults or gas supply problems.
  • Flame loss and ionisation faults: contaminated or failing ionisation probes and poor combustion.
  • Condensate lockouts: blocked siphons, neutralisers or drains, or frozen external condensate pipes.
  • Fan faults: failed fans, speed feedback errors and bearing noise.
  • Gas valve faults: failed valves and unstable gas pressure.
  • Sensor and control faults: failed temperature sensors, TopTronic E module faults and communication errors.
  • Low output or overheating: often caused by heat exchanger fouling on the gas side or poor water flow.
  • Pressure faults: low system pressure, failed expansion vessels and leaks.
  • Cascade faults: double boilers or multi-boiler plant not sequencing correctly.

How We Handle a Hoval Breakdown

  1. Triage on the phone. We take the model, fault codes and symptoms so the engineer arrives prepared.
  2. Diagnose on site. We use the TopTronic E fault history to get to the root cause quickly.
  3. Repair. We use genuine Hoval parts, fitting on the first visit where we can and sourcing quickly where we can’t.
  4. Test. We run a full combustion and safety check before we leave.
  5. Report. You receive written documentation of the fault, the work done and any recommendations.

Hoval Breakdown? Call Now

Call 0800 677 1817. For planned maintenance, see Hoval Boiler Servicing.