Open: 24 hours
1430 E Borchard Ave, Santa Ana, CA 92705
© 2025 White Glove Plumbing
Tank Water Heater Repair in Orange County, CA
No hot water, lukewarm showers, or scalding spikes usually trace back to the thermostat/control system. White Glove Plumbing & Restoration performs tank water heater thermostat repair—for gas (gas control valve/thermostat) and electric (upper/lower thermostats & ECO)—with calibrated testing, correct parts, and 120°F target setpoints for safety.
✓ Precise diagnosis: Multimeter and combustion checks—fix the cause, not just the symptom
✓ Clean close-out: Temperature set, labels applied, and a simple scald-safety guide
✓ Right parts on the truck: Gas control valves, upper/lower stats, high-limit reset, and more
✓ Safety-first: Draft/CO checks (gas), breaker/load checks (electric), and T&P relief verification
✓ Safety-first
✓ Precise diagnosis
✓ Clean close-out
✓ Right parts on the truck
What Is Tank Water Heater Thermostat Repair?
A targeted service to diagnose, repair, or replace the controls that regulate tank temperature:
Gas: Integrated gas control valve/thermostat, thermocouple/thermopile, flame sensor, and ignition safety.
Electric: Upper/lower thermostats with ECO (high-limit) and heating elements that the stats control.
We test, replace, and recalibrate so your heater maintains a safe, steady setpoint—typically ~120°F unless you request otherwise.
Why Choose White Glove Plumbing
Compliance & safety first: Combustion air, draft/CO, gas-tightness, proper grounding/bonding, and T&P discharge path verified.
Defensible documentation: Photos, readings (ohms/volts/millivolts, draft/CO), parts replaced, and final temperature at the tap.
Beyond the thermostat: We address elements (electric), thermocouple/thermopile & flame sensor (gas), mixing valve issues, and expansion/PRV interactions.
One accountable team: If the tank is end-of-life, we can replace the heater the same visit—permit and haul-away included.
Immediate Actions (What to Do Now)
If water is too hot or T&P is discharging: Turn power/gas OFF and cold inlet OFF to the heater—don’t cap the T&P valve.
If no hot water (electric): Check for a tripped breaker, but don’t keep resetting if it trips again.
If pilot won’t stay lit (gas): Leave gas OFF and ventilate; do not attempt repeated relights.
Snap photos of the rating label and control panel.
Call our 24/7 dispatcher—we’ll test, replace/repair, and reset safely.
Common Situations We Handle
No hot water (electric): Failed upper thermostat/ECO or upper element.
Lukewarm/short showers: Failed lower thermostat or lower element; mixing valve out of calibration.
Water too hot/scalding: Stuck gas control or misadjusted stats; mixing valve failure.
Pilot on/gas flowing but no burn: Faulty gas control, weak thermopile/thermocouple, dirty flame sensor.
Intermittent heat/tripping breaker: Shorted element, loose connections, or failing thermostat contacts.
Error codes on electronic gas controls.
Secure & Diagnose
Verify model/fuel, check for leaks, draft/CO (gas) or voltage/breaker (electric), confirm T&P discharge, and measure delivered temperature at a fixture.
Targeted Testing
Electric: Meter voltage/continuity, test upper/lower thermostats & ECO, and elements (ohms/ground fault).
Gas: Evaluate thermopile/thermocouple output, flame sensor, burner operation, and gas control status/diagnostics.
Repair / Replace Components
Replace upper/lower thermostats/ECO or gas control valve/thermostat as indicated; address elements or thermocouple/ignition if they’re the root cause.
Reassembly & Setpoint
Reinstall insulation and covers, secure wiring, set the target 120°F (or your specified temperature), and label controls.
Commissioning & Safety Checks
Relight/energize, verify burner/element cycling, re-test draft/CO (gas) or amperage/load (electric), and confirm T&P operation if applicable.
Close-Out & Guidance
Provide readings, parts list, and a simple scald-safety/energy guide; note recommended add-ons (e.g., mixing valve, expansion tank, leak shutoff).
What’s Included
Full diagnostic (electrical/combustion) and safety checks
Thermostat/control replacement (gas control valve or upper/lower stats as applicable)
Basic ancillary fixes discovered in testing (wire terminations, strain reliefs, minor burner cleaning)
Temperature set & verification at a fixture (~120°F default)
Final safety verification (draft/CO, breaker/load, T&P path)
Documentation packet (photos, readings, parts, recommendations)
Costs & Timelines (What to Expect)
No hot water (electric): Failed upper thermostat/ECO or upper element.
Lukewarm/short showers: Failed lower thermostat or lower element; mixing valve out of calibration.
Water too hot/scalding: Stuck gas control or misadjusted stats; mixing valve failure.
Pilot on/gas flowing but no burn: Faulty gas control, weak thermopile/thermocouple, dirty flame sensor.
Intermittent heat/tripping breaker: Shorted element, loose connections, or failing thermostat contacts.
Error codes on electronic gas controls.
Insurance & Compliance Support
Records your stakeholders expect: Photos, readings, and replaced-part details—handy for property managers/HOAs.
Policy alignment: Repairs generally don’t need permits; if a replacement is wiser, we handle permit/inspection and provide COIs on request.
Risks of Waiting (Why Act Now)
Scalding hazards from runaway temperatures
Energy waste and premature tank wear from short-cycling
Breaker trips/CO risks if faults persist (electric/gas)
T&P discharges and potential water damage
Methods, Materials & Quality Standards
Test gear: Calibrated thermometer, multimeter, manometer, CO/draft meter.
Parts: OEM or equivalent UL/CSA-listed thermostats, gas controls, ECOs, and elements.
Practices: Proper torque on terminals, neat wiring, reinstalled insulation/covers, leak and draft checks, and labeled setpoints.
Options: Mixing (tempering) valve, expansion tank, leak detector + auto-shutoff, and recirc optimization.
Frequently Asked Questions
Is the “red reset button” a fix?
It’s an ECO high-limit reset (electric). If it trips, something’s wrong—call for diagnostics instead of repeated resets.
Thermostat vs. mixing valve—what’s the difference?
The thermostat controls the tank. A mixing valve blends hot/cold at the outlet for safer, steadier delivery and more effective capacity.
What temp do you set?
Default ~120°F for safety/efficiency unless you request otherwise or a process requires higher temps.
Could the elements be the real problem?
Yes—on electric tanks, failed elements mimic thermostat issues. We test both to avoid guesswork.
Do you warranty the repair?
Yes—parts and workmanship warranties; details depend on model/part.
When is replacement smarter than repair?
If the tank leaks, is rusted out, or is near end-of-life, replacement (with permit) is usually the better value.
More White Glove Plumbing Hot Water System Services
Proudly Serving All of Orange County
Address: 1430 E Borchard Ave, Santa Ana, CA 92705
Phone: (949) 209-5206
Email: office@whitegloveplumbingca.com
White Glove Plumbing is locally based in Santa Ana and serves residential and commercial clients across Orange County with 24/7 emergency plumbing and water-damage restoration.
Our expert team handles leak detection, emergency plumbing, water extraction/dry-out, sewage cleanup, mold remediation, and reconstruction in top OC areas including Irvine, Anaheim, Santa Ana, Orange, Tustin, Costa Mesa, Newport Beach, Huntington Beach, Mission Viejo, Lake Forest, Fullerton, Yorba Linda, Laguna Beach, Dana Point, and San Clemente - plus surrounding neighborhoods.
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1430 E Borchard Ave, Santa Ana, CA 92705