Callahan Air Conditioning Pros

Boiler Repair | Callahan Air Conditioning Pros
Wayne, NJ • Heating • Hydronic

Boiler Repair

No-heat on one or more zones, noisy pipes, rising pressure, or leaks—we diagnose hot water and steam boiler problems quickly and restore safe, even heat.

Common Boiler Problems We Fix

No-heat zones — failed circulators, stuck zone valves, air-bound loops, or bad thermostats.

Pressure issues — failed expansion tank, relief valve discharge, or automatic feeder problems.

Ignition & flame — thermocouple/igniter faults, gas valve timing, and safeties.

Noise & banging — air, poor pitch, kettling from scale, or pump cavitation.

Leaks — pumps, valves, air separators, or corroded piping.

Controls — aquastats, low-water cutoff, outdoor reset, and limit controls.

Our Diagnostic Process

We verify combustion and venting safety, check system pressure and expansion tank charge, test circulators/zone valves, purge air, inspect safeties (LWCO/relief), and evaluate controls. You’ll get clear findings and repair options before work starts.

Safety First

If you smell gas, see water near electrical components, or a CO alarm sounds, shut the boiler down, ventilate, and contact emergency services. We’ll follow with safe repairs.

Boiler Repair FAQs

Do you service steam?

Yes—we address water level controls, vents, pitch, and pressure settings common to steam systems.

Why is my relief valve dripping?

Often due to expansion tank failure, overfilling, or excessive temperature/pressure.

Can you purge air from my radiators?

Yes—we bleed or purge and can add air separation to reduce future problems.

Repair or replace a leaking heat exchanger?

Heat exchanger/section leaks typically require replacement; we’ll outline options.


Related Services

Service Areas

Local to Wayne with seasonal maintenance across nearby towns.

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