1) If you have power to the heater and it doesn't get hot.
2) If disconnect the heater and check it what an ohm meter (it measures resisatnce, we sell them or they sell them at any home store) and it either shows 0 resistance (a dead short) or infinate resistance (it is "open" or broken) then your heater is bad.
International Buyers § Please Note
Import duties, taxes, and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up: please do not confuse them for additional shipping charges. We do not mark merchandise values below value or mark items as 'gifts': US and International government regulations prohibit such behavior. USPS First Class Mail International may take 2-6 weeks depending on customs and the postal service.
Combined Shipping We will always combine shipping and charge you the actual shipping for the items you purchase, to your zip, and for the method you choose. Just make your purchase and either let us know, or the next working day we will automatically combine your purchases and send you a combined invoice.
USPS Shipping We offer USPS Priority Mail (PM) and First Class Mail (FCM) (where weight allows: FCM maximum is 13 oz) and on a few heavy items, USPS Parcel Post. USPS is the largest package handler in the world, but it is not perfect. There is not true "tracking" for USPS methods. We always get and provide to our customers Delivery Confirmation. This shows it is in route or delivered, but not much in between. Also, though USPS is normally fast (FCM and PM are 2-5 days to most of the US) there is no guarantee in delivery. And though 99% of our USPS Parcel Post shipments take less than a week, it can be longer. Those packages essentially go "standby." By using USPS, you get savings in shipping cost, but you do have to understand those tradeoffs. Your shipping choice doesn't matter to us: we charge actual shipping for either USPS or UPS. If you want "real" tracking or guaranteed shipping time, please use UPS over USPS. We will ship promptly and provide tracking, but once we ship, please remember that it is out of our hands. To our Canadian and overseas customers, please remember packages can be held up by customs, again, we have no control over this.
To provide you with the best and most efficient service possible, if you select UPS shipping, we may ship via either UPS or FedEx depending upon your location.
Please do not add notes to your PayPal payment: we cannot view them.
Orders that pay for Express Mail will be shipped Express Mail, that may or may not be 1 day delivery depending on your zip code.
Items must be returned within 14 days . Refund will be given as Money back. Refund policy details: null