SOS can help. Send us your spare generators and we will inspect and repair them. Replacement of the cooling water parts including the solenoid valve, pressure switch, O2 sensor and tubing are the most common PM. The cost of this service is cheap compared to the downtime caused by a failure and lack of replacement generators available. Shorted power transformers are very expensive and often difficult to replace or have rebuilt. Fittings that cost little can do a great deal of damage as shown.