Girard GSWH-2 Troubleshooting Guide
If you have encountered an issue with your Girard system and are seeking solutions here, please note there are several common factors related to the hot water service that might be the cause. We recommend following our Consumer Troubleshooting Checklist, as the problem you're experiencing may not be a significant concern.
While it may seem basic, please ensure the unit is powered on and confirm there's a stable 12V connection.
The RV's cold water system sources its water from a pressurized source, either a shore connection or an RV water pump connected to the RV's fresh water storage tank.
This source should maintain a pressure of 45 psi or greater.
Please note: A continuous, non-pulsating water flow is essential for consistent temperature and optimal performance.
Ensure there's a sufficient amount of gas in the gas bottle.
While your stove may still operate, it doesn't necessarily mean there's enough gas for your hot water service. The hot water service requires 42,000 BTUs, while the stove only needs 12,000 BTUs. *BTU stands for British Thermal Unit. Think of it as the power or "heat strength" of an appliance. A higher BTU means it can produce more heat but requires more gas. It's a way to measure how much energy a gas appliance can provide. You can use a Gas Level Indicator or a Truma Level Check to keep an eye on your LPG levels.
Ensure there's no blockage in the Flow switch inlet and the filter screen located externally at the back of the unit.
Place a rag underneath the brass fitting at the back of the unit.
Unscrew the female tap adapter (see Image 1 for reference).
Check and remove any blockages (e.g., dirt, grass) from the filter (refer to Image 2).
Notes: Blockages can prevent the sensor from detecting water flow, resulting in the unit not activating or throwing an error code.
Ensure there's no blockage in the water pressure controller or regulator.
Action: Remove the hose connector and clear any blockages from the filter.
Notes: A blockage may cause the water temperature to significantly increase above the set temperature due to inadequate water flow.
*The water pressure controller/regulator might resemble the provided image or could be a brass fitting.
Ensure the wires in the microprocessor (white box) are properly connected.
Remove the wires and reconnect them. You should hear a 'click' sound when they are securely in place.
The blue circles indicate the connections you should examine. Additionally, we recommend conducting a visual inspection of the microprocessor to identify any potential damage.
Error Codes
Cause: An open circuit or short circuit condition is detected. This might be due to an internal failure in the Temperature Probe or a faulty connection (wires).
Cause: Flame signal is lost while the burner is operating or the burner doesn't light after two attempts, leading to LOCKOUT. This might be due to lack of gas, faulty igniter, improper distance between the igniter and burner, obstructions between the igniter and burner, or low gas inlet pressure.
Cause: Issues similar to those indicated by Error E1 occurring during normal operation. A lockout will also occur under these conditions.
Cause: Occurs if the ECO thermostat opens, usually when the water temperature at the outlet exceeds 140˚ F (60°C).
Cause: An open or short circuit condition. This might be due to an internal failure in the Temperature Probe or a faulty connection (wires).
Cause: No motor signal detected before ignition or during operation. It could also be due to a wiring fault in motor connections.
Cause: Outlet Water Temperature has exceeded 140°F (60°C) for 3 seconds.
Cause: The Controller Module detects an open circuit in the Linear Valve control circuit, indicating a faulty valve.
Cause: Air pressure switch isn't detected for 7 seconds before ignition or is cut-off for 2 seconds during operation. This might be due to a faulty motor or blockages in the air supply or exhaust system.
Cause: Flame is sensed before ignition. This displays when a short is detected in the flame sensor.
Cause: Water Heater ran longer than 20 minutes.
Cause: The unit will run briefly and shut off during freezing conditions (Below 9°C) if LP gas and 12V power are on. This mode only protects the water heater Heat Exchanger, not the RV’s plumbing system.
Frequently asked questions
Girard GSWH2 is distinctively known as the original pioneer of the instantaneous hot water system. Unlike traditional hot water heaters, Girard has invested heavily in creating a quality product that is American designed for superior performance and reliability. This commitment to quality ensures that users can enjoy endless amounts of hot water once they learn how to operate the system properly. Additionally, Girard offers dedicated local Australian phone support, providing personalized assistance to ensure all customer needs are met efficiently.