Mobile RV Water Heater Diagnostics

RV Water Heater Repair & Diagnostics

No hot water, intermittent heating, ignition problems, electric-mode failures, leaks or tankless water-heater issues? MilTech RV provides mobile diagnosis and repair for common RV water-heater systems and related controls.

Start With the Cause

Don't Replace Parts Until the System Has Been Tested

An RV water heater that stops producing hot water can have several possible causes. The problem may involve 12-volt controls, 120-volt electric heating components, propane ignition, thermostats, wiring, switches, control boards, water flow or another component. Proper testing helps separate the actual failure from the symptom.

No Hot Water

Diagnosis when the water heater appears to operate incorrectly or does not produce expected hot water.

Propane Ignition Problems

Evaluation of accessible ignition, control and related components when the burner will not light or stay operating.

Electric Heating Problems

Troubleshooting of applicable 120-volt heating components and controls when electric mode is not heating correctly.

Common Water-Heater Problems

Symptoms We Diagnose

  • Water heater will not ignite on propane
  • Burner lights and then shuts down
  • Electric mode does not heat
  • Propane works but electric does not
  • Electric works but propane does not
  • Water is only lukewarm
  • Water temperature is inconsistent
  • Fault light or control-panel error
  • Water heater repeatedly attempts ignition
  • Visible water leak around accessible components
  • Tankless water heater has flow or temperature concerns
  • 12-volt control or wiring concerns
Systems & Components

RV Water Heater Systems We Service

Propane Water Heaters

Diagnosis of common RV propane water-heater ignition, burner and control concerns within our mobile-service scope.

Electric / Combination Units

Testing of applicable electric heating and combination propane/electric water-heater operation.

Tankless RV Water Heaters

Troubleshooting of common tankless RV water-heater operating, control, flow and temperature concerns.

Ignition & Controls

Accessible igniters, thermostats, switches, control boards, wiring and related control components.

Heating Components

Applicable electric elements, burner components and other serviceable heating-system parts.

Leaks & Water Flow

Evaluation of accessible water-heater connections, fittings, valves and water-flow concerns.

Important: The exact service procedure depends on the water-heater manufacturer, model, installation and symptoms. Component compatibility should be confirmed from the equipment data tag before parts are ordered.
The MilTech RV Approach

Diagnose. Explain. Repair. Educate.

A water heater that will not ignite does not automatically need a control board, and a unit that will not heat electrically does not automatically need a heating element. Power supply, switches, wiring, controls and other conditions can produce similar symptoms.

MilTech RV tests the system first, explains the findings and discusses repair options before additional authorized work is performed.

1. Diagnose
Test the applicable operating mode and identify the likely cause of the problem.
2. Explain
Review the findings and recommended repair options in plain language.
3. Repair
Complete authorized repairs using appropriate parts and procedures.
4. Educate
Explain the repair, normal operation and what to monitor going forward.
Straightforward Pricing

Mobile RV Water Heater Diagnostic Pricing

Service Call

$75

Standard mobile service-call fee.

First Diagnostic Hour

$150

Initial diagnostic labor.

Additional Labor

$150/hr

Additional authorized repair labor.

Parts and materials are additional. Travel beyond the normal 30-mile service area is $2 per mile. Findings and additional repair work are discussed before authorization.

Related Services

Water Heater, Plumbing or Preventive Maintenance?

Water Heater Diagnostics

Choose this service for no hot water, ignition failures, electric heating problems, tankless operation or water-heater-specific faults.

RV Plumbing Repair

Choose plumbing diagnostics for water pumps, faucets, toilets, supply lines, city-water connections and other RV water-system problems.

RV Plumbing Repair

Preventive Maintenance

Choose maintenance when the water heater is operating normally and needs scheduled inspection, flushing or seasonal upkeep.

RV Preventive Maintenance
Seasonal Mobile Service

RV Water Heater Service in Iowa & Arizona

Greater Des Moines, Iowa

Mobile RV water-heater diagnostics and repair during the Iowa service season.

Des Moines Mobile RV Repair

Yuma, Arizona

Seasonal winter mobile RV water-heater diagnostics and repair in Yuma-area RV communities.

Yuma Mobile RV Repair

No Hot Water? Let's Find Out Why.

Tell us your RV year, make and model, water-heater brand/model if available, whether the problem occurs on propane, electric or both, and any fault lights or error codes you are seeing.