Service for no hot water: Arrived to the customers home. Customer states that their is no hot water and attempted to light the pilot. Went downstairs and checked the unit. The spill switch was off on reset. Checked for draft. Told the customer that it could of been of gust of wind that blew out the pilot. Relit the pilot. Everything working properly at this time. No charge. If there happens to be a problem again in the future, we will look more into it. Or would need a chimney specialist to look at the chimney.